This system realizes communication, position, warning and center database searching function.
实现了实时通信、定位、报警以及监控中心信息查询等功能。
The result that user has operated on the replicas may pull back to the center database, which provides an available means for data collection and database backup.
用户在本地对复制数据库进行的操作也可返回到中心数据库，为数据收集和数据库备份提供了有效的手段。
The result that user has operated on the replicas may pull back to the center database, which provides an available means for data collection and database backup.
用户在本地对复制数据库进行的操作也可返回到中心数据库，为数据收集和数据库备份提供了有效的手段。
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